This series includes the VFIO userspace driver interface for the3.6 kernel merge window. This driver is intended to provide asecure interface for device access using IOMMU protection forapplications like assignment of physical devices to virtualmachines. Qemu will be the first user of this interface, enablingassignment of PCI devices to Qemu guests. This interface isintended to eventually replace the x86-specific assignment mechanismcurrently available in KVM. This interface has the advantage ofbeing more secure, by working with IOMMU groups to ensure deviceisolation and providing it's own filtered resource access mechanism,and also more flexible, in not being x86 or KVM specific (extensionsto enable POWER are already working).

As a new driver, I'm including both the individual patches in email,as well as a branch to pull from:

git://github.com/awilliam/linux-vfio.git for-linus

This driver is originally the work of Tom Lyon, but has since beenhanded over to me and gone through a complete overhaul thanks to theinput from David Gibson, Ben Herrenschmidt, Chris Wright, JoergRoedel, and others. This driver has been available in linux-next forthe last month. Thanks,